Material Science Objective Questions


16. Aluminum Bronze is also called-

A. White metal

B. Imitation gold

C. Muntz metal

D. Duraluminum

Click for Answer/Explanation

Correct Answer is B

Its color is similar to 22-carat gold.

Read More- Define Heat Work, Similarities, Difference

17. Structure of common glass is-

A. Amorphous

B. Fully crystalline

C. Partially crystalline

D. None of these

Click for Answer/Explanation

Correct Answer is A

Amorphous (Non-Crystalline)

18. The elastic limit of cast iron as compared to its ultimate breaking strength is-

A. Half

B. Double

C. Approximately the same

D. None of these

Click for Answer/Explanation

Correct Answer is C

Cast Iron is brittle in nature, so the elastic limit and the breaking point are approximately the same.

19. Line Imperfection in a crystal is known as-

A. Frenkel Defect

B. Edge Dislocation

C. Miller Defect

D. Schottky Defect

Click for Answer/Explanation

Correct Answer is B

20. In the designation of Aluminum casting A514.0 14 indicates-

A. Aluminum purity

B. Aluminum content

C. Magnesium content

D. percentage of alloy element

Click for Answer/Explanation

Correct Answer is C

Here 14 represents Magnesium content

Leave a comment